Fire-door



E. J. G. PHILLIPS.

FIRE DOOR. APPLICATION FILED MAY|1.1920.

Patented NOV. 1,- 1 921." I HEET 1- f5 19 mun" 21 a&

' E. J. G. PHILLIPS.

FIRE DOOR.

APPLICATION FILED MAYIY. 1920.

' Patentd Nov. 1,

2 SHEETS-SHEET 2- Fig. 3 and STATES fl'r .m

ELLIS J. G. PHILLIPS, OF AURORA, ILLINOIS, ASSIGNOR TO RICHARDS-WILCOX MANUFACTURING COMPANY, OF AURORA, ILLINOIS, A CORPORATION OF ILLINOIS.

FIRE-DOOR.

Specification of 'Letters Patent.

Patented Nov. 1, 1921.

Application filed May 17, 1920. Serial No. 382,010.

To all whom it may concern Be it'known that I, ELLIs J. G. PHILLIPS, a citizen'of the United Stateaand a resident of Aurora, in thecounty of Kane and State of Illinois, have invented certain new and useful Improvements in Fire-Doors, of which the following is a specification, reference being had to the accompanying drawlngs.

My invention relates to fire doors of the type having its body formed of two sheet metal plates spaced apart and preferably having a sheet of refractory material such as asbestos interposed between the plates. It is the object of my invention to provide a new and improved form and arrangement of parts by which the required stiffness is given to the door as a whole while at the same time providing for the expansion of the parts under the influence of intense heat without danger of having the door twisted or warped'out of shape. The preferred means by which I have accomplished my object are illustrated inthe drawings and are hereinafter specifically described. That which I believe to be new and desire to cover by this application is set forth in the claims.

In the drawings,-

Figure 1 is a front face view of my improved door supported in position to close a door opening;

Fig. 2 is an enlarged detail, partly broken away, being a horizontal section taken on line 22 of Fig.1;

Fig. 8 is a perspective view of the back face of my improved door, one side of the door being removed for showing a'vertical section of the door;

Fig. 4 is an edge view of the upper portion of the door as seen from the left in Fig. 5 1s an edge view of the lower end A portion ofthe door also as seen from the left in Fig. 3. J Referring to the several figures of the drawings in which corresponding parts are indicated by the same reference characters, l

10 indicates the front plate of my door,.11

the rear plate, and 12 a sheet of asbestos interposed between said-two plates. A series vof rivets 15: adjacent tothe upper, lower .of the door.

and both side edges of the door serve to secure the plates 10. and 11 and the asbestos sheet 12 in fixed position with respect to each other. One of the plates, which, in the construction shown is the front plate 10, is provided with vertical corrugations therein, whlle the other plate is provided with horizontal corrugations, whereby the expansion of either plate longitudinally of the corrugations therein is readily taken care of in the other plate.

As is best shown in Fig. 2, stiffening members are provided at each side of the door. The stiffening member at each side is in the form of a heavy angle iron 14 which is secured as hereinafter described to the front plate 10, and a lighter angle bar 15 which is secured as hereinafter described to the back plate 11. Two of the flanges of the angle bars 14 and 15 are in contact, and the other flanges are in spaced parallel position. As is clearly shown in said Fig. 2, the front plate 10 is turned about the angle iron 14 and about the rear edge of the angle bar 15, rivets 16 and 17 being inserted through the parts and serving to hold the angle bars rigidly in position with respect to each other and also serving to hold the turned edge of the front plate 10 in position. The openings through the angle bars 14 and 15 through which the rivets 16 and 17 pass are in the form of slots in the upper ends of which the rivets are adapted to stand normally, see Fig. 3. Bolts 18 extend through suitable openings in the plates 10 and 11, the sheet 12, and the angle bars 14 and 15 for securing such parts in position. The openings through the angle bars 15 for the bolts 18 are, with the exception of the openings for the uppermost bolts at each side of the door, in the form of horizontally-disposed slots whereby upon the expansion of the plate 11 longitudinally of the corrugations therein the bolts 18 are adapted to yield laterally so as to prevent distortion As will be notedin Fig. 2, the edges of the plate 11 are spaced away from the angle irons 14 so as to allow'for an expansion of such plate laterally.

"As is best shown in Fig." 1, hinge bars 19and 20 extending across the front face ofthe front plate 10 are secured to the door by-meansnf belts 21 and 21% hearth? s d edge of the door, said bolts each passing through the front plate 10, an angle bar 14, insulating sheet 12, back plate 11 and an angle bar 15,the bolts 21 at one side of the door passing through horizontal slots and, as shown, the bolts 21 passing through slots in the hinge bars. The hinge bars 19 and 20 are provided with suitable eyes upon their outer ends which are adapted to be supported by pivot pins 22 mounted upon the frame of the door.

stiffening means is provided also at the top of the door. As is shown in Fig. 3, this stlffening means comprises a heavy bar 23 which .is held in position by an angle bar 24 and a sheet metal cover'plate 25. The angle bar 24 has its horizontally-disposed flange in contact with the rearportion of the under face of the bar 23, and the cover plate 25 is folded about the rear edges of the plate 23 and the horizontal flange of the angle bar'24, bein held in position by means of rivets 26. it the front edge the cover plate 25 is turned downward upon the outer face of the front plate 10 into positionparallel with the vertical flange of the angle bar 24. At the sides of the door the uppermost bolts 18 that have been heretofore referred to serve to hold the cover plate 25, the plates 10 and 11, the asbestos sheet 12, and the angle bar 24 in position,

and also serve to connect such parts with the laterally-disposed flanges of the vertical angle bars 15. The openings for the uppermost bolts '18 in the angle bars 15 are in the formof vertical slots so as to permit an expansion of the angle bars 15 without causing a distortion of the structure at the top of the door. Other bolts 27 are provided for securing the cover plate'25, the angle bar 24, and the body portion of the door rigidly together. The cover plate 25 is provided at each of its ends with flaps 28 and 29 formed integrally with the vertically-disposed portion and the horizontal portionrespectively, such flaps being folded about one of the edge portions of the door Where they are held in position by the rivets 16 and '17, one of such corner con- 'structions being shown in Fig. 4.

in the'bar 30, as shown by dotted lines in Fig. 2. At the 'front'the cover plate 32 is turned b'a'ck'a'short distance about the bar 30 and is then turned upward between the "plates 10 and 1 1 'to lie 'falongside and against the-asbestes sheea12. The lowermostzbolts '18 at the sides serve to .hold the p'l'ates each other. Other bolts 84 are provided in termediate the sides of the door for connecting the upwardly turned portion of the cover plate 32 with the body portion of the door. The bottom cover plate 32 at each of its ends is provided with a flap 85 formed integrally with the horizontallydisposed bottom portion thereof, which flap is turned up and lies against the outer face of the adjacent angle iron 14 and .is secured in place by two of the rivets .16 and 17, as is best shown in Fig. 5.

While I have shown each of the plates '10 andll as being formed in a single piece, it will be understood that I do not wish to be restricted to this construction, inasmuch as either one of the plates may, without departing from my-invention, be formed either integrally or of a plurality of sections suitably secured together.

sire to secureby Letters Patent, is-

1. A door comprising two sheet metal plates spacedapart forming the body of the door, two angle bars secured toeach of the side portions of said plates respectively, and means securing said angle'bars together.

2. A door comprising two sheet metal plates spaced apart and forming the body of the door, and two angle-iron members at each. side portionof the door, oneof said plates being secured to one of said angleiron members and the other plate being secured to both of said members.

3. A door comprising in combination two sheet metal plates forming the body of the door, two angle-iron members at each side edge of the door, one of the flanges of eachof said angle-iron members standing at right angles to the faces of the door, said two flanges being in contact with each other, and the remaining flanges being substantially parallel with the faces of the door and spaced apart from 'each other, and means securingsaid body portion and angle iron members together s '4. A door comprising in combination two sheet metal plates spaced apart and forming the body of the door, two angle-iron mem bers at each side edge of the door, one of the flanges of eachof said angle-iron members standing at right angles to theface's 1 each other, securing means passing through both of said spaced-apart flangesand through both of said spaced apartj'plates, "and 'other securin means passing through both of the said contacting flanges and through a turned portion of one of said plates.

5. A door comprising two sheet metal plates, a sheet of refractory material interposed between said sheet metal plates, a heavy angle iron secured to the edge portion of one of said plates, and a light angle bar extending in the same direction'and secured to said angle iron and to the edge portion of the other plate.

6. A door comprising two sheet metal plates spaced apart forming the body of the door, an angle bar secured to the upper marginal portion of one of said plates, a sheet metal cover plate extending about the horizontal flange of said angle bar and folded down on the outer face of the other of said two plates, and bolts passing through the vertical flange of said angle bar, through the upper marginal portions of said plates, and through the turned-down edge of the cover plate.

7. A door comprising two sheet metal plates spaced apart forming the body of the door, an angle bar extending along the upper edge of one of said plates, a heavy bar in horizontal position on top of said angle bar, a sheet metal cover plate extending about the horizontal flange of said an gle bar and said heavy bar and folded down on the outer face of the other of said two plates, means for securing together said heavy bar, said angle bar and said cover plate, and bolts passing through the vertical flange of said angle bar, through the upper marginal portions of said plates, and through the turned-down edge of the cover plate.

8. A door comprising two sheet metal plates spaced apart forming the body of the door, a stiffening bar secured along the side of the door, a stiffening bar secured along the top of the door, a sheet metal cover plate extending about the top stiffening bar and folded down on the outer face of one of said plates, a flap formed with the turned-clown portion of the cover plate, a secondflap formed with the horizontal top portion of the cover plate, one of said flaps being turned to lie against the edge of the door and the other flap lying against the firstturned flap, and means securing said flaps to the side stiffening bar.

9. A door comprising two sheet metal plates spaced apart forming the body of the door, a heavy bar below a horizontal flange turned on the lower edge of one of said plates, a sheet metal cover plate extending substantially about said bar and about the outer edge of said flange andextendingupward between said first-named two plates, means securing together said cover plate, said heavy bar and said flange, and means securing together the turned-up edge of said cover plate and said first-named two plates.

10. A door comprising two sheet metal plates spaced apart forming the body of the door, angle bars secured to said plates respectively along one edge of the door, the edge portion of one of said plates being turned about the side flange of the angle bar to which it is secured and about the edges of the side flanges of both of said angle bars, and fastening devices passing through the turned portion of the plate and through longitudinally-disposed slots in said angle bars for securing said parts to gether.

11. A door comprising a sheet metal plate having transversely-extending corrugations therein, a second sheet metal plate having vertical corrugations therein, said two plates forming the body of the door, angle bars extending along the side of the door and arranged with their laterally-disposed flanges adjacent to said plates respectively and with their side flanges adjacent to each other, bolts securing said laterally-disposed flanges to said plates, the openings in the first-named plate for said bolts being in the form of laterally-disposed slots, the edge portion of said second plate being turned about the side flange of the angle bar adjacent thereto and about the edges of the side flanges of both of said angle bars, and rivets passing through the turned portion of the second plate and through verticallydisposed slots in said side flanges serving to secure said parts together.

ELLIS J. G. PHILLIPS. 

